Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe0d09ab3129abdc…

MALICIOUS

PDF

77.4 KB Created: 2021-03-06 11:03:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: e2ee587a8199f5881d9ec304b1d1662c SHA-1: ed2dc7206f0a0121b9e9e5d59e0f0fb85e7850e4 SHA-256: fe0d09ab3129abdcdb6c0f4726d4bbf489860471d34547661c42f5c7b07bc710
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for Pdf.Phishing.Trojan and an ML classifier indicating high maliciousness. The PDF contains a large number of external links, suggesting it is part of a link farm or phishing campaign. The primary malicious URL identified is https://lozipotod.ru/123?utm_term=estilo+apa+sexta+edicion+ejemplos, which is likely used to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://lozipotod.ru/123?utm_term=estilo+apa+sexta+edicion+ejemplos PDF link annotation
    • https://cdn.sqhk.co/laxegipo/idje0gf/robotrek_snes_manual.pdfIn PDF document text
    • http://paxebijevoz.iblogger.org/atresia_esofagica_y_fistula_traqueoesofagica.pdfIn PDF document text
    • https://cdn.sqhk.co/moxibusas/ghrUehd/6702757022.pdfIn PDF document text
    • https://cdn.sqhk.co/rizijuwet/gRIicib/descargar_mad_dragon_defense_hack_apk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://d4078116-a2d5-466f-97e6-20d899f6ca30.filesusr.com/ugd/576447_093981fc921a476ebe5f7fdb0abc8222.pdf?index=trueIn PDF document text
    • https://6184de0c-c318-42a7-882e-c5ddc63b817d.filesusr.com/ugd/1c8c1e_5c6df867c57f43ba88495f947e4445cf.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/potamotaz/atomic_structure_quiz_questions_and_answers.pdfIn PDF document text
    • https://436c154b-1c2d-4c60-9768-ed3a268ef5e1.filesusr.com/ugd/e8e253_8f0aa53f39994de2bc8f9623e9ce39ec.pdf?index=trueIn PDF document text
    • http://jafimogapevov.rf.gd/chrome_plugin_to_video_from_website.pdfIn PDF document text
    • https://s3.amazonaws.com/pisik/echo_srm_2100_weed_eater_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/gezizefefififa/nubomi.pdfIn PDF document text
    • https://fad58b31-c538-4d3f-828d-7998eec853b9.filesusr.com/ugd/7e6083_da857179dcea444ea3d6eb954e5d2f4d.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zebarufuridorur/rimozopudezoz.pdfIn PDF document text
    • https://s3.amazonaws.com/tanikanaw/carroll_isd_alternative_transportation_form.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/bass_mix_song_punjabi.pdfIn PDF document text
    • https://s3.amazonaws.com/lakujusitejojet/jakevel.pdfIn PDF document text
    • http://negekipewunej.epizy.com/40331315675.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/japaladitokoxo.pdfIn PDF document text
    • https://s3.amazonaws.com/ropidadegaxut/sifaruj.pdfIn PDF document text
    • https://044ec7df-721b-4788-b209-87474a3fcb06.filesusr.com/ugd/60ffa2_b55bd27a429842ca88a250cc7836bbcb.pdf?index=trueIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED4F 5224 bytes
SHA-256: a8a24b20333002d9b03d5cd53233fde0e6e51b4d295b5043fdf85c2d7e439a6f
font_01_sfnt_off0000ff11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF11 11964 bytes
SHA-256: b2adbcdd02974522fb4883380ee0c435eaff99ae6959fd11dfae924ab7189103

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